Home / 3,155.12-4,349.51-2,207.97

Finding the Fourth Proportional to 3,155.12, 4,349.51 and 2,207.97

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Solution

The fourth proportional to 3,155.12, 4,349.51 and 2,207.97 is: 3,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.12 : 4,349.51 = 2,207.97 : x
  2. Step 2: Convert to fraction form
    3,155.12/4,349.51 = 2,207.97/x
  3. Step 3: Cross multiply
    3,155.12x = 4,349.51 × 2,207.97
  4. Step 4: Simplify right side
    3,155.12x = 9,603,576.55
  5. Step 5: Solve for x
    x = 9,603,576.55/3,155.12
  6. Step 6: Final answer
    x = 3,043.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.